How-to · 11 min read
How to write prompts that produce great AI websites (with examples)
The exact prompt patterns that produce conversion-grade AI websites — what to include, what to leave out, and 8 worked examples across landing pages, SaaS sites, portfolios, and more.
The single biggest determinant of AI-website quality is not the model. It's the prompt. Two users with identical access to the same AI builder produce wildly different outputs because one writes structured prompts and the other writes "a website for my business."
This is the prompt structure that consistently produces conversion-grade sites — plus 8 worked examples across the most common use cases.
The five-part prompt structure
- Offer — what you're selling, in a sentence
- Audience — who it's for, specifically
- Sections — the page structure you want (hero, features, pricing, FAQ, etc.)
- Brand — name + 1–2 adjectives + any colors locked in
- Tone — confident / playful / clinical / luxury / scrappy
All five in one paragraph. No more, no less. More is contradictory; less is generic.
Why each part matters
Offer
Vague offers produce vague pages. "A SaaS" → bland. "Inventory tracking software for Shopify stores doing $1M+/yr" → specific. The AI mirrors the specificity of the offer.
Audience
The AI tunes copy register and proof-strip-imagery to the audience. "Founders" reads differently from "enterprise procurement teams." Specify.
Sections
Pre-listing the sections prevents the AI from making bad structural choices. If you don't list pricing, you might not get pricing. If you don't list FAQ, you might not get FAQ schema.
Brand
Two adjectives are enough — "minimal and confident" or "playful and warm" — to tune typography, color, and imagery direction. More adjectives confuse the AI.
Tone
Tone shapes the copy voice. Without explicit tone, the AI defaults to safe-corporate — fine but undifferentiated.
8 worked examples
1. Landing page for a paid-ads campaign
2. SaaS marketing site
3. Portfolio for a designer
4. Coming-soon / waitlist page
5. Restaurant website
6. Personal brand site
7. Agency website
8. Coach / consultant site
What NOT to put in the prompt
- Specific pixel values — let the design system handle spacing
- Brand color hex codes during the first generation — anchor the AI's palette first, then refine
- More than 8 sections — long prompts produce thin sections
- Contradictions — "playful but corporate, minimal but rich" makes the AI hedge
- Hyper-detailed copy — let the AI draft, then taste-edit
Iteration prompts vs. generation prompts
Once the page is generated, switch from comprehensive prompts to surgical ones:
- "Make the hero punchier — focus on the price + the date."
- "Replace the FAQ with a comparison table."
- "Add a stat block under the hero with 3 numbers."
- "Tighten the body copy — cut 30%."
Surgical iteration prompts are how the page goes from a 7/10 first generation to a 9/10 published version.
Try these prompts in Website Killer
Free forever tier — paste any of the 8 examples above into the composer on the homepage and see the output for yourself.
Frequently asked questions
Why does my AI website look generic?
Almost always because the prompt is generic. "A website for my business" produces a generic site. Specify the offer, audience, sections, brand, and tone — then iterate surgically.
Should I describe colors and fonts in the prompt?
Not on the first generation. Let the AI's design system pick a brand-tuned default, then anchor specific colors or typography on the second iteration. Locking design tokens too early reduces the AI's design quality.
How long should an AI website prompt be?
One paragraph — 50–150 words. Short enough to fit in a single thought, long enough to specify all 5 parts (offer, audience, sections, brand, tone). Longer prompts produce contradictory outputs.
